Heh, That's a bar code sticker
Some improvements:
This is designed as a floating structure with the pump attached under it. This way pump vibrations are isolated from the container, and the full lenght of the risers is in contact with the air.
I carved a styrofoam block with the soldering iron, to hold and provide the right flotation to balance the pump; alowing the full structure to float leveled.
Here's the pump with a filter attached and the floater.